This question seems like its too easy so i might have got it wrong.. but would't you just subtract 20 and 10 from 800 to get 770?
Answer:
Im not 100% sure I studied this about 4 years ago but I belive it would be: Producers, 10%, herbivores, omnivores,carnivores, heat, trophic, and energy
Explanation:
It cannot because it is missing the key elements that is required and the things that are needed are not there<span />
Cold front brings a sudden drop in temperature sometimes with hail , thunder , and lightning . Warm fronts bring gentle rain or light snow , followed by warmer , milder weather . Stationary front brings a cold and warm air together and neither air mass has the force to moved the other . Occluded front brings a warm air mass that gets caught between two cold air masses .